Jianhu JH-SN-500 Xenon Arc Weathering Test Chamber
| Brand | Jianhu |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JH-SN-500 |
| Xenon Lamp Power | 10.5 kW (4 lamps) |
| Irradiance Range | 0–1300 W/m² (broadband, 290–800 nm) |
| Humidity Range | 30–95% RH |
| Rainfall Duration | 1–9999 min 59 sec (adjustable) |
| Rainfall Cycle Interval | 1–240 min (adjustable) |
| Black Panel Temperature Range | RT+10°C to 70°C |
| Temperature Control Accuracy | ±0.1°C |
| Humidity Control Accuracy | ±1% RH |
| Lamp Life | ~1600 h at nominal irradiance |
| Filter Options | Standard quartz inner/outer filters |
Overview
The Jianhu JH-SN-500 Xenon Arc Weathering Test Chamber is an engineered environmental simulation system designed to replicate the damaging effects of full-spectrum solar radiation, temperature, and humidity on polymeric, automotive, textile, coating, and architectural materials. It employs a 10.5 kW air-cooled xenon arc lamp array—comprising four high-stability U.S.-sourced lamps—to generate continuous spectral output spanning 290 nm to 800 nm, closely matching terrestrial sunlight under AM1.5 conditions when paired with appropriate filter configurations. Unlike UV fluorescent or metal halide sources, xenon arc technology delivers true broadband irradiance, enabling accurate assessment of photochemical degradation mechanisms including chalking, fading, gloss loss, cracking, and embrittlement. The chamber integrates precise black panel temperature control (RT+10°C to 70°C), dynamic relative humidity regulation (30–95% RH), programmable water spray cycles, and forced-air convection using low-noise centrifugal fans—all governed by a Siemens PLC and Weintek color touchscreen HMI. Its architecture adheres to fundamental principles of accelerated weathering: controlled irradiance dosimetry, thermal equilibrium management, and repeatable moisture exposure sequences.
Key Features
- Four independently replaceable U.S.-sourced xenon lamps (1600 h typical service life at 0.35 W/m²/nm @ 340 nm), mounted in a vertical configuration for uniform irradiance distribution across the test area
- Modular optical filtering system supporting multiple spectral profiles: Daylight (Q/B), Window Glass (WG), Extended UV (XUV), and Quartz Inner/Outer combinations per ISO 4892-2 and ASTM G155 requirements
- Integrated water spray subsystem with adjustable duration (1–9999 min 59 sec) and cycling interval (1–240 min), utilizing stainless steel nozzles and recirculating pump (Shanghai Xishan S-6512)
- Dual-zone climate control: independent PID-regulated heating (NiCr alloy heaters) and humidification (stainless steel surface-evaporation system); dehumidification via French Tecumseh P9510 refrigeration unit
- Black panel temperature monitoring using calibrated aluminum alloy sensor with electrocoat finish, compliant with ASTM D7869 and ISO 105-B02/B04 specifications
- Robust chamber construction: SUS304 stainless steel interior; phosphated and electrostatically coated carbon steel exterior; high-temperature silicone door gasket; anti-radiation borosilicate viewing window
- Comprehensive safety architecture: over-temperature cutoff, dry-run protection, lamp current monitoring, ground-fault interruption, phase-loss detection, and motor thermal overload safeguards
Sample Compatibility & Compliance
The JH-SN-500 accommodates irregularly shaped specimens up to 50 × 76 × 50 cm (W × D × H) via adjustable SUS304 sample racks. Its design supports flat-panel mounting, three-dimensional fixtures, and multi-angle exposure configurations without compromising irradiance uniformity. The system meets or exceeds the physical and operational requirements of ISO 4892-2:2013, ASTM G155-22, GB/T 16422.2–2014, GB/T 1865–2021, GB/T 2423.24–2013, SAE J2527:2020, and SAE J2412:2015. All irradiance measurements are traceable to NIST-calibrated radiometers (GCK-11, Peking University). Humidity and temperature sensors conform to IEC 60751 Class A (PT100 Ω). The control system logs all critical parameters—including lamp voltage/current, chamber setpoints, actual values, and alarm events—with timestamped records suitable for GLP-compliant audit trails.
Software & Data Management
The embedded Weintek cMT Series HMI provides intuitive graphical programming of multi-step test profiles, including ramp-hold cycles, irradiance modulation, spray-on/off sequencing, and humidity transitions. Data logging occurs at user-defined intervals (1 s to 60 min) and is exportable via USB or Ethernet to CSV format. While the base system does not include FDA 21 CFR Part 11-compliant electronic signatures or audit trail encryption, it supports third-party integration with LIMS or MES platforms through Modbus TCP and RS485 interfaces. Optional software packages enable automated report generation aligned with ISO 17025 documentation standards, including uncertainty budgeting for irradiance and temperature measurements.
Applications
This chamber serves R&D laboratories, QC departments, and certification bodies evaluating material durability across industries: automotive OEMs assessing dashboard trim and exterior paint systems; aerospace suppliers qualifying sealants and composite laminates; textile manufacturers validating UV resistance of outdoor fabrics; coatings producers testing acrylic, polyurethane, and fluoropolymer formulations; and building product developers certifying roofing membranes, PVC siding, and architectural glazing. Its ability to simulate realistic diurnal cycles—including dark periods with condensation—makes it particularly suited for studies involving hydrolytic degradation pathways and synergistic UV/moisture effects.
FAQ
What spectral filters are included standard with the JH-SN-500?
The system ships with one set of quartz inner and outer filters optimized for daylight simulation (ISO 4892-2 Cycle 1). Additional filter kits—Window Glass (WG), Extended UV (XUV), and Daylight-Q/B—are available as options.
Is irradiance calibration performed at installation?
Yes. Each unit undergoes factory calibration using a NIST-traceable broadband radiometer. A calibration certificate referencing ISO/IEC 17025-accredited procedures is provided with shipment.
Can the chamber operate continuously for extended validation runs?
Yes. Designed for unattended operation up to 999 hours, the system includes redundant safety interlocks, lamp aging compensation algorithms, and real-time lamp power monitoring to maintain irradiance stability within ±5% over time.
What maintenance is required for long-term reliability?
Routine tasks include quarterly cleaning of filter surfaces and spray nozzles, biannual verification of humidity sensor drift, and annual replacement of the main air filter and refrigerant desiccant cartridge. Lamp replacement is typically scheduled every 1,500–1,600 operating hours.
Does the controller support remote monitoring via Ethernet?
Yes. The Siemens S7-1200 PLC and Weintek HMI support Modbus TCP and Ethernet/IP protocols, enabling integration into facility-wide SCADA networks and centralized data acquisition systems.
